A prism is a 3D shape which has a constant cross section - both ends of the solid are the same shape and anywhere you cut parallel to these ends will give you the same shape. For example, in the prism ...

In the early 17th century, Galileo was demonstrating telescopes, and Johannes Kepler was experimenting with new 3D shapes. Over the subsequent 400 years, many advances have been made in astronomy. But ...

Researchers have developed a method to change the shape of a flat sheet of elastomer, using actuation that is fast, reversible, controllable by an applied voltage, and reconfigurable to different ...